var JSON = {
    org: 'http://www.JSON.org',
    copyright: '(c)2005 JSON.org',
    license: 'http://www.crockford.com/JSON/license.html',
    stringify: function stringify(arg) {

        var c, i, l, s = '', v;



        switch (typeof arg) {

        case 'object':

            if (arg) {

                if (arg.constructor == Array) {

                    for (i = 0; i < arg.length; ++i) {

                        v = stringify(arg[i]);

                        if (s) {

                            s += ',';

                        }

                        s += v;

                    }

                    return '[' + s + ']';

                } else if (typeof arg.toString != 'undefined') {

                    for (i in arg) {

                        v = stringify(arg[i]);

                        if (typeof v != 'function') {

                            if (s) {

                                s += ',';

                            }

                            s += stringify(i) + ':' + v;

                        }

                    }

                    return '{' + s + '}';

                }

            }

            return 'null';

        case 'number':

            return isFinite(arg) ? String(arg) : 'null';

        case 'string':

            l = arg.length;

            s = '"';

            for (i = 0; i < l; i += 1) {

                c = arg.charAt(i);

                if (c >= ' ') {

                    if (c == '\\' || c == '"') {

                        s += '\\';

                    }

                    s += c;

                } else {

                    switch (c) {

                        case '\b':

                            s += '\\b';

                            break;

                        case '\f':

                            s += '\\f';

                            break;

                        case '\n':

                            s += '\\n';

                            break;

                        case '\r':

                            s += '\\r';

                            break;

                        case '\t':

                            s += '\\t';

                            break;

                        default:

                            c = c.charCodeAt();

                            s += '\\u00' + Math.floor(c / 16).toString(16) +

                                (c % 16).toString(16);

                    }

                }

            }

            return s + '"';

        case 'boolean':

            return String(arg);

        default:

            return 'null';

        }

    },

    parse: function (text) {

        var at = 0;

        var ch = ' ';



        function error(m) {

            throw {

                name: 'JSONError',

                message: m,

                at: at - 1,

                text: text

            };

        }



        function next() {

            ch = text.charAt(at);

            at += 1;

            return ch;

        }



        function white() {

            while (ch) {

                if (ch <= ' ') {

                    next();

                } else if (ch == '/') {

                    switch (next()) {

                        case '/':

                            while (next() && ch != '\n' && ch != '\r') {}

                            break;

                        case '*':

                            next();

                            for (;;) {

                                if (ch) {

                                    if (ch == '*') {

                                        if (next() == '/') {

                                            next();

                                            break;

                                        }

                                    } else {

                                        next();

                                    }

                                } else {

                                    error("Unterminated comment");

                                }

                            }

                            break;

                        default:

                            error("Syntax error");

                    }

                } else {

                    break;

                }

            }

        }



        function string() {

            var i, s = '', t, u;



            if (ch == '"') {

outer:          while (next()) {

                    if (ch == '"') {

                        next();

                        return s;

                    } else if (ch == '\\') {

                        switch (next()) {

                        case 'b':

                            s += '\b';

                            break;

                        case 'f':

                            s += '\f';

                            break;

                        case 'n':

                            s += '\n';

                            break;

                        case 'r':

                            s += '\r';

                            break;

                        case 't':

                            s += '\t';

                            break;

                        case 'u':

                            u = 0;

                            for (i = 0; i < 4; i += 1) {

                                t = parseInt(next(), 16);

                                if (!isFinite(t)) {

                                    break outer;

                                }

                                u = u * 16 + t;

                            }

                            s += String.fromCharCode(u);

                            break;

                        default:

                            s += ch;

                        }

                    } else {

                        s += ch;

                    }

                }

            }

            error("Bad string");

        }



        function array() {

            var a = [];



            if (ch == '[') {

                next();

                white();

                if (ch == ']') {

                    next();

                    return a;

                }

                while (ch) {

                    a.push(value());

                    white();

                    if (ch == ']') {

                        next();

                        return a;

                    } else if (ch != ',') {

                        break;

                    }

                    next();

                    white();

                }

            }

            error("Bad array");

        }



        function object() {

            var k, o = {};



            if (ch == '{') {

                next();

                white();

                if (ch == '}') {

                    next();

                    return o;

                }

                while (ch) {

                    k = string();

                    white();

                    if (ch != ':') {

                        break;

                    }

                    next();

                    o[k] = value();

                    white();

                    if (ch == '}') {

                        next();

                        return o;

                    } else if (ch != ',') {

                        break;

                    }

                    next();

                    white();

                }

            }

            error("Bad object");

        }



        function number() {

            var n = '', v;



            if (ch == '-') {

                n = '-';

                next();

            }

            while (ch >= '0' && ch <= '9') {

                n += ch;

                next();

            }

            if (ch == '.') {

                n += '.';

                while (next() && ch >= '0' && ch <= '9') {

                    n += ch;

                }

            }

            v = +n;

            if (!isFinite(v)) {

                error("Bad number");

            } else {

                return v;

            }

        }



        function word() {

            switch (ch) {

                case 't':

                    if (next() == 'r' && next() == 'u' && next() == 'e') {

                        next();

                        return true;

                    }

                    break;

                case 'f':

                    if (next() == 'a' && next() == 'l' && next() == 's' &&

                            next() == 'e') {

                        next();

                        return false;

                    }

                    break;

                case 'n':

                    if (next() == 'u' && next() == 'l' && next() == 'l') {

                        next();

                        return null;

                    }

                    break;

            }

            error("Syntax error");

        }



        function value() {

            white();

            switch (ch) {

                case '{':

                    return object();

                case '[':

                    return array();

                case '"':

                    return string();

                case '-':

                    return number();

                default:

                    return ch >= '0' && ch <= '9' ? number() : word();
            }
        }
        return value();

    }

};